---- "Peter T. Owsianowski" <pnoceanwesty@GMAIL.COM> wrote:
> I'm sure the experts will chime in, but that sounds like a less than
> effective radiator. They do get gummed and you have no way of knowing what
> DPO (dreaded previous owner) ran thru that WBX.

Wouldn't a plugged radiator be more likely to cause hot rather than cold running?  Of course, this time of year, it might not get hot (in the conditions cited, freezing ambient temps), but the radiator cools when it functions properly, overheats when it doesn't.  I think thermostat.  I'm not an expert, and they make think differently.  mcneely